Title :
Modeling of a SEPIC converter operating in Continuous Conduction Mode
Author :
Eng, Vuthchhay ; Pinsopon, Unnat ; Bunlaksananusorn, Chanin
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
A SEPIC (single-ended primary inductor converter) DC-DC converter is capable of operating in either step-up or step-down mode and widely used in battery-operated equipment. There are two possible modes of operation in the SEPIC converter: Continuous conduction mode (CCM) and discontinuous conduction mode (DCM). This paper presents modeling of a SEPIC converter operating in CCM using the state-space averaging (SSA) technique. The modeling leads to a small-signal linear model of the converter, from which the transfer functions used for feedback control design can be determined. Results are presented to verify the accuracy of the obtained model.
Keywords :
DC-DC power convertors; feedback; inductors; state-space methods; transfer functions; DC-DC converter; SEPIC converter; battery-operated equipment; continuous conduction mode; discontinuous conduction mode; feedback control; single-ended primary inductor converter; small-signal linear model; state-space averaging technique; transfer functions; Batteries; Circuits; DC-DC power converters; Equations; Inductors; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Voltage;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2009. ECTI-CON 2009. 6th International Conference on
Conference_Location :
Pattaya, Chonburi
Print_ISBN :
978-1-4244-3387-2
Electronic_ISBN :
978-1-4244-3388-9
DOI :
10.1109/ECTICON.2009.5136982